Machine for applying split rings on the butts of bobbins.



1). s. GOURTNEY.' MACHINE FOB APPLYING SPLIT RINGS 0N THBBUTTS 0FBOBBINS.

APPLICATION FILED NOV. 27, 1909. v Patented Dec. 27,1910.

D. S. COURTNEY. v MACHINE FOR APPLYING SPLIT RINGS ON THE BUTTS OFBOBBINS.

APPLICATION FILED NOV. 2 1909.

Patented Dec. 27, 1910.

3 SHEETS-SHEET 2 'WITJVES-SES:

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11s. COURTNEY. MACHINE FOR APPLYING SPLIT RINGS ON THE BUTTS 0P BOBBINS.

APPLIGATION FILED NOV. 27, 1909.

7 43 Patented De0.27,1910.

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pr snares DANA S. COURTNEY, OF CHICOPEE, MASSACHUSETTS.

MACHINE FOR APPLYING SPLIT RINGS ON THE BUTTS OF BOBBINS.

Eli 9,438.

Specification of Letters Patent.

Patented Dec. 2?, 1910.

T 0 all whom it may concern:

Be it known that I, DANA S. COURTNEY, a citizen of the United States ofAmerica, and resident of Chicopee, in the county of Hampden and State ofMassachusetts, have invented certain new and useful Improvements inMachines for Applying Split Rings on the Butts of Bobbins, of which thefollowing is a full, clear, and exact description.

This invention relates to a machine l1aving for its object the applyingof the split rings upon the grooved butt end portions of bobbins in avery speedy and reliable man ner.

As well known, bobbins, especially for loom shuttles, have near theirbutts or bases a plurality of annular grooves,usually three,in whichcross sectionally round split rings are sprung to engagement, such ringsproducing separated annular ribs around the bobbin, which are of greatpractical value in their employment in automatic bobbin feeding looms.

By the exercise of the present invention a boy or other unskilledoperative may, by taking the bobbins one by one and placing each in aninverted position on base support comprised in the machine and in alinement with a reciprocating plunger thereabove and next under acylindrical mandrel or guiding plug-like member on which the split ringsare successively placed, bring about under the operations of the machinea forcing of the rings, the first one into the lowest groove of theinverted bobbin, the next one into the intermediate groove, and thethird one into the upper groove, these operations being swiftly repeatedwith certainty that each one of every set of the split rings will bedownwardly crowded in the exact extent necessary for bringing it to itsengagement in the proper receiving groove therefor.

A prominent characteristic of the present machine is found to consist inmaking the base or rest on which the lower end of the inverted bobbin isplaced, and relatively to which the reciprocatory plunger moves, successively variably movable in its descents against correspondinglydifferent stops for limiting such successive movements.

Another prominent characteristic of the machine is found in the meansfor supporting the plug or mandrel, on the upper end of which the ringsare successively placed, in such manner that while such mandrel is everpresent as an element for the reception of the rings, it is sopeculiarly supported in its intermediate position between the plungerand base that the supporting means constitutes no impediment to thesliding of the split ring as forced by the plunger downwardly along theentire length of the mandrel to its place of embrace about the butt ofthe inverted bobbin.

The improved machine, furthermore, includes special improvedconstructions of the plunger and of the means for constituting thevariable stops for limiting the descend ing movements of the base anddevices coacting with the latter for reliably operating the same.

The invention as exemplified in amachine at present practically andsuccessfully used is described. in conjunction with the accompanyingdrawings and defined in the claims.

In the drawings :Figure 1 is a front elevation of the bobbin ringingmachine; Fig. 2 is a side elevation of the same; Fig. 3 is a frontelevation somewhat similar to F ig. l, but drawn on a larger scale andshowing some of the parts in central vertical section,-the positions ofthe parts being with the bobbin base in its normal upper position to theplunger in its elevated position, and a split ring represented asprovided on the upper conical end of the mandrel, and all in readinessfor the machine to force the ring to the lowest groove of the invertedbobbin. Fig. t is a view similar to Fig. 3, but showing the parts as inthe ring setting position. Fig. 5 is a plan view with parts in sectionas taken on line 55, Fig. l. Fig. (i is an elevation of the lowerportion of the machine as seen beyond the plane represented by line 6-6,Fig 2. Fig. 7 is a partial front elevation showing the yieldable jawsfor holding the mandrel in suspension in their positions relative to themandrel when the split ring is being forced past such jdWS. Figs. 5, 6,and 7 are on even larger scale than Figs. 3 and 4t.

Similar characters of reference indicate corresponding parts in all ofthe views.

In the drawings, A represents the f 'ame of the machine at the front ofwhich the operative parts comprised in the present invention arelocated.

B represents a vertically reciprocatory plunger, the up and down strokesof which are imparted from a driving shaft C carrying on the face plate0 thereon a crank stud a with which a pitman rod 6& is connected, suchrod being also connected with a stud a on the plunger all as very commonin means for imparting regular reciprocating motions to plungers; and,as manifest, the plunger has a downward throw always to a given level.

Near the bottom of the machine and relatively to which the plungermoves, is a substantially horizontal base D to constitute a rest orsupport for the lower end of an inverted bobbin, this base beingpivotally mounted at 7) for an up and down swinging movement, and it isadjacent its pivot provided with a crank like arm 72 connected to whichand to a stationary part of the machine is a spiral spring 6 the effectof which is to normally maintain the base in its upper position aslimited by the stop b with which the stud b projecting from the back ofthe base engages.

The base at a suitable intermediate portion thereof is provided with asocketed block 6 for receiving the attenuated end of the bobbin and forretaining it against displacement; and above the base is a V- shapedgage E so that when a bobbin is in the rest socket therefor at the baseand by an intermediate.portion crowded against the convergent walls ofthe gage it will acquire a truly vertical position in alinement with theaxis of the plunger. Above the gage is a. forwardly projecting shelflike support F having at its front middle portion a recess (Z in whichis located an axially vertical cylindrical member or mandrel G, theupper end of which is conical and which mandrel has vertical grooves e ein its opposite sides, such grooves having their lower ends more or lessabove the lower end of the mandrel.

f f represent an opposed pair of members for constituting a support formaintaining the mandrel in its floated or suspended position between theplunger and the base. These members comprise straight horizontallyarranged shank bars and, at their approached ends, jaws 10, the inneredges of which are upwardly and outwardly inclined; and the shanks ofthe jaws are guided for their approaching and receding horizontalmovements in suitable ways therefor provided on the shelf like supportF. The springs f exert reactions on the jaws to force them yieldinglyinwardly so that they normally have engagements sidewise against themandrel in the slots 6 e in the latter.

Beneath the base (which has the lug d depending from an intermediateportion thereof) is a rotative wheel J having its edge formed stepshaped with the steps in repeated sets or series, there being in eachseries of the steps one,-especially designated by g in Fig. 3,of thegreatest outward prominence, an intermediate one designated and an innerstep against any one of which steps according as the wheel is positionedthe lug like downward projection of the base may bottom when the base isforced downwardly by the plunger through the mediary of the bobbin.

The stepped wheel J is mounted to easily rotate on a stud it(represented in section in Fig. 6 and understood as forwardly projectingfrom the boss h shown in Fig. 2), and it has at its rear side unitarytherewith, as by being made as one with such stepped wheel, or by beingaffixed on the same stud as that forming the journal for the wheel, aratchet wheel i with which the pawl coacts for giving at everyreciprocation of the swinging base a forwardly feeding impulse to thestepped wheel. This pawl is represented as an approximately vertical barpivoted at j near its upper end on the swinging base and having a springj for keeping it to its engagement with the ratchet wheel so that afterthe base has been depressed and the pawl reaches to engagement with anew tooth of the ratchet wheel on the upward movement of the base to itslimit it will advance the ratchet wheel to the extent of one of itsteeth and with it the wheel J to the extent of the circumferentiallength of one of its steps. Coacting with the same ratchet wheel i whichis at the back of the stepped wheel is an ordinary click pawl or detent7c, the whole of which is shown in Fig. 6, while portions of this pawlare con cealed in Figs. 3 and a. The stepped wheel has on its front andas one therewith a second ratchet wheel m shown in Figs. 1 to a,coacting with which is a detent a which is made as a rigid angularmember depending below the verticall movable base by which it iscarried.

The teeth of the ratchet wheel m are, as a comparison of Figs. 3% withFig. will show, in the reversed arrangement from the teeth of he ratchetwheel 2', and while the detent working on ratchet wheel 2' prevents anytendency for the rotative parts to overthrow by reason of the feedingimpulses of the pawl, the detent a when the base is in its normalelevated position constitutes a stop for preventing any back throw sothat the stepped wheel is dead locked by reason of its ratchet wheels,which are united thereto, being engaged by oppositely acting detents.This prevents any possible displacement of the stepped wheel betweentimes when bobbins are brought to their places in the machine and sothat the downwardly movable base will always in its proper successionhave its movements to abutment against the proper limiting steps. But,of course, it is apparent that so soon as the base moves downwardly therigid angular detent n is disengaged from the ratchet wheel at, suchengagement not being again resumed until the next ratchet feed movementhas been completed and the base is in its normal upper position.

As specifically made, the plunger comprises the plunger shaft 0 having asocket 0 in its lower end portion and a shank mem her 0 engaged in saidsocket having its lower extremity formed with a series of separatedownwardly extending tongues constituting spring jaws 0 ,-these jawspresenting the appearance of a downwardly open tube having longitudinalslots therearound. The splits between the jaw constituting springtongues at the lateral P sides are as wide as or a little wider than,the

jaws 10, 10 which are in operative association with the grooved mandrel.The plunger moreover comprises a sleeve like shell or case 0 inclosingthe spring jaws 0* and serving as a guard for preventing them frombecoming unduly outwardly bent or distorted such sleevelike incasingshell 0 having its inner wall downwardly flaring, as represented in Fig.3 so as not to cramp or impede the action of the plunger spring aws. Thesaid sleeve-like shell has slots 0 in its lateral sides so that byreason thereof the substantially tubular and spring jawed plunger maypass without obstruction down about and to entirely inclose themandrel,-the transversely yielding jaws forming no impediment.

The operation of the machine will be now described: It will be assumedthat the base B is in its normal upper position with the step 9 ofgreater prominence thereunder, and the bobbin will be brought to itsposition in the socketed rest 6 and rectified as to its verticalalinement by the gage E; the operative will place one of the split ringson the conical upper end of the mandrel; the plunger will descend andits spring jaws will, by their lower ends, force the split ringdownwardly on the mandrel, past the jaws 10, 10, and off from themandrel onto the bobbin butt, it being here explained that by theconstrictive engagement between the spring jaws and the cylindricalmember, the latter will have a descending movement until it comes uponthe upper end of the inverted bobbin; and the engagement between thespring jaws of the plunger and the bobbin butt which is finally embracedby such jaws is such that the bobbin is forced downwardly and through itthe base D is moved clownwardly until it comes to a stop against thesolid abutment constituted by the aforesaid mostprominent step 9; andnow the level of the upper end of the bobbin will be such relatively tothe lower ends of the plunger spring jaws that the latter will crowd thesplit ring down to the third or lowest groove in the bobbin. Upon theupward returning movement of the base the wheel J is fed around to bringthe intermediate step 9 unor splits at quarters der the depending lug dof the base so that a second spring ring provided on the conical upperend of the mandrel will, on the next operation of the machine, becrowded to place in the middle groove of the bobbin; and then, again. onthe next operation of the machine, the wheel J having been advanced sothat its lowest step 51' is in limiting relation to the base, the upperend or" the bobbin will be so much lower relatively to the level reachedby the end of the plunger in its descent that the third ring manuallysupplied on the mandrel will, while being crowded down to the levelinvariably reached by the plunger, only be moved down on the bobbin buttso far as to be snapped into the upper groove therein. And, of course,it is clear that these operations are repeated in the continued runningof the machine for the ringing of bobbin after bobbin in a very rapidand reliable manner.

It will be here explained that it is the duty of the boy or otheroperative to place the rings on the mandrel so that the splits of eachset will be at thirds on the bobbin as is a requirement in the trade. Itwill also be explained that in the operation of the machine the mandrelincidentally has a de gree of descending and upwardly returning movementas imparted thereto by the grip thereon acquired by the spring jaws ofthe plunger, for it is advantageous that when a bobbin is placed in themachine the mandrel will be above and clear from it, and yet it isrequisite that the mandrel shall thereafter be moved down so as to forma cylindrical continuation of the bobbin but for the guidance of thesplit ring from the mandrel onto the bobbin. The upward movements whichthe mandrel has by reason of the rising of the spring jaw plunger whichgrips it, are limited by the engagement of the lower ends of thesidewise grooves e (2 against the bases of the transversely yieldablespring jaws ff.

I claim 1. In a bobbin ringing machine, the combination with areciprocatory plunger, of a vertically movable base for a bobbin,relatively to which the plunger moves, and means for suece sivelyvariably limiting the descending movements of said base.

2. In a bobbin ringing machine, the com bination with a verticallyreciprocatory plunger having its lower end constructed to embrace theextremity of the bobbin, of a vertically movable base on which to rest abobbin, and relatively to which the plunger moves, and means forsuccessively variably limiting the descending movements of the base.

3. In a bobbin ringing machine, the combination with a reciprocatoryplunger, of a base on which to rest a bobbin, and relatively to whichthe plunger moves, which base is mounted for up and down swingingmovements, and a movable member under said base having series ofvariably prominent stops adapted to correspondingly limit the downwardmovements of said base, and means for moving said member whereby itsdifferent stops will be successively positioned in their limitingrelations to the said base.

. 4. In a bobbin ringing machine, the combination with a reciprocatoryplunger, of a base on which to rest a bobbin, and relatively to whichthe plunger moves, which base is mounted for up and down swingingmovements, and a movable member under said base having series ofvariably prominent stops adapted to correspondinglylimit the downwardmovements of said base, actuated by the swinging base, and means formoving said member whereby its different stops will be successivelypositioned in their limiting relations to the said base.

5. In a bobbin ringing machine, the combination with a verticallymovable plunger, of a vertically movable base for a bobbin below theplunger and relatively to which the latter moves, means for successivelyvariably limiting the downward movements of the base, and a gage betweenthe base and the plunger for insuring a positioning of the bobbinsustained on the base truly vertically.

6. In a bobbin ringing machine, the combination with a reciprocatoryplunger, of a vertically reciprocatory base thereunder, and relativelyto which the plunger moves, a wheel below the base having edgewisethereon repeated series of steps, and means for periodically rotativelymoving said wheel for bringing one after another of said steps tolimiting positions relatively to said base.

7. In a bobbin ringing machine, the combination with a reciprocatoryplunger, of a vertically reciprocatory base for a bobbin mounted underthe plunger, a wheel located below the base and having repeated seriesof steps circularly arranged thereon and having unitary therewith aratchet wheel, a pawl carried by the movable base and coacting with saidratchet wheel, and means for imparting elevating movements to said base.

8. In a bobbin ringing machine, the combination with a reciprocatoryplunger, of a vertically reciprocatory base for a bobbin, mounted underthe plunger, a wheel located below the movable base and having repeatedseries of stops circularly arranged thereon and having unitary therewitha ratchet wheel, a pawl carried by the movable base and coacting withsaid ratchet wheel, means for imparting elevating movements to saidbase, and a stop for limiting the upward movement of the base.

9. In a bobbin ringing machine, the combination with a reciprocatoryplunger, of a vertically reciprocatory base for a bobbin, mounted underthe plunger, a wheel located below the movable base and having repeatedseries of stops circularly arranged thereon, and having unitarytherewith a ratchet wheel, means for imparting elevating movements tothe base, a stop for limiting the upward movements of the base, and adetent carried by the base and arranged to engage the said ratchet wheelupon the termination of the upward movement of the base.

10. In a bobbin ringing machine, the com bination with a reciprocatoryplunger, of a vertically reciprocatory base for a bobbin, mounted underthe plunger, a wheel located below the movable base and having repeatedseries of stops circularly arranged thereon, and having unitarytherewith a ratchet wheel, a pawl carried by the base and having animpelling coaction with the said ratchet wheel, a detent pawl coactingwith said ratchet wheel, means for imparting elevating movements to thebase, a stop for limiting the upward movements of the base, anothertoothed wheel unitary with the stepped wheel, and a detent carried bythe base and arranged to engage the said toothed wheel upon thetermination of the upward movement of the base.

11. In a bobbin ringing machine, the combination with a frame and areciprocatory plunger, of a substantially horizontal base pivotallymounted below the plunger and having a crank-like arm extending from itspivotal portion, a spring connected to said arm and to a fixed part ofthe machine, a wheel located below the movable base and having repeatedseries of steps circularly arranged therearound, having a ratchet wheelconnected therewith and another ratchet wheel, connected with said stepshaped wheel, the teeth of which are reverse from those of the firstratchet wheel and a vertically arranged pawl intermediately pivoted onthe base and coacting with the first named ratchet wheel, a springconnected to said base and to the upper extremity of said pawl, and adetent carried by the base and arranged to engage the second namedratchet wheel upon the termination of the upward movement of the base.

Signed by me at Springfield, Mass, in

presence of two subscribing Witnesses.

DANA S. COURTNEY.

Witnesses:

IVM. S. BELLOWS, G. R. DRISCOLL.

